org.modeshape.jcr.query

Class BufferManager.MakeSortingBuffer<K,V>

java.lang.Object

org.modeshape.jcr.query.BufferManager.MakeSortingBuffer<K,V>

All Implemented Interfaces:

BufferManager.SortingBufferMaker<K,V>

Enclosing class:

BufferManager

protected final class BufferManager.MakeSortingBuffer<K,V>
extends Object
implements BufferManager.SortingBufferMaker<K,V>

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	BufferManager.MakeSortingBuffer(String name, org.mapdb.BTreeKeySerializer<K> keySerializer, org.mapdb.Serializer<V> valueSerializer)

Method Summary

Methods

Modifier and Type	Method and Description
BufferManager.SortingBufferMaker<K,V>	keepSize(boolean keepBufferSize) Specify whether to keep track of the buffer size when adding value.
BufferManager.SortingBuffer<K,V>	make() Create the BufferManager.SortingBuffer instance.
BufferManager.SortingBufferMaker<K,V>	useHeap(boolean useHeap) Specify whether to store the bufer on the heap.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BufferManager.MakeSortingBuffer

protected BufferManager.MakeSortingBuffer(String name,
                               org.mapdb.BTreeKeySerializer<K> keySerializer,
                               org.mapdb.Serializer<V> valueSerializer)

Method Detail

keepSize

public BufferManager.SortingBufferMaker<K,V> keepSize(boolean keepBufferSize)

Description copied from interface: BufferManager.SortingBufferMaker

Specify whether to keep track of the buffer size when adding value. Doing so may slow adds, but it will make returning the size very quick. Adds may be faster if this is set to false, but asking the buffer for its size requires iterating over the entire buffer and thus may be slower.

Specified by:

keepSize in interface BufferManager.SortingBufferMaker<K,V>

Parameters:

keepBufferSize - true if the buffer is to efficiently track its size, or false if it can skip this and, only if BufferManager.Buffer.size() is called, compute the size in a brute force manner.

Returns:

this maker instance; never null

useHeap

public BufferManager.SortingBufferMaker<K,V> useHeap(boolean useHeap)

Description copied from interface: BufferManager.SortingBufferMaker

Specify whether to store the bufer on the heap.

Specified by:

useHeap in interface BufferManager.SortingBufferMaker<K,V>

Parameters:

useHeap - true if the buffer's contents are to be stored on the heap, or false if off-heap storage should be used.

Returns:

this maker instance; never null

make

public BufferManager.SortingBuffer<K,V> make()

Description copied from interface: BufferManager.SortingBufferMaker

Create the BufferManager.SortingBuffer instance.

Specified by:

make in interface BufferManager.SortingBufferMaker<K,V>

Returns:

the distinct buffer; never null